<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form action="" name="form2">
        value:<input type="text" value="请输入" accesskey="q"><br>
        placeholder:<input type="text" placeholder="请输入" autofocus autocomplete="on" required><br>
        多文件上传：<input type="file" multiple><br>
        <input type="submit" value="提交吧">
    </form>
</body>
</html>